Formula One's manufacturers have submitted a package of future engine regulations to the FIA that they hope will be rubber stamped by the governing body.
Representatives of BMW, Ferrari, Honda, Mercedes-Benz, Renault and Toyota have agreed on rules for engines from 2010 that they hope will fulfil the FIA's desire to be environmentally friendly, but will also help reduce costs for the competitors.
Rather than create all-new power units for 2011, the engine manufacturer want the current engine rules to remain similar to now until 2013 - in exchange for introducing Kinetic Energy Recovery Systems (KERS) and a fuel-flow restrictors for 2010. The engines would also be used for four races.
BMW motorsport director Mario Theissen confirmed that the document signed by all the engine manufacturers had now been submitted to the FIA for approval.
"The manufacturers' proposal went to the FIA last week," he said. "We don't have a response so far."
Toyota's Luca Marmorini was hopeful that the engine rules would satisfy the FIA's desires.
"This is a good compromise solution," he said. "It achieves all the objectives the FIA wants: the four-race engine will help the independent teams and introduce cost-cuts while also keeping F1 as the pinnacle of motorsport. We do hope the FIA accepts it."
As well as proposing the engine rules from 2010, the manufacturers have also suggested they agree on a more radical overhaul of the regulations for 2013 by the end of the 2009 season.